LED (light-emitting diode) fluorescent lamp and fluorescent lamp connecting circuit

Abstract

The embodiment of the invention discloses an LED (light-emitting diode) fluorescent lamp and a fluorescent lamp connecting circuit. The LED fluorescent lamp comprises an LED fluorescent tube which comprises a first end closure and a second end closure; the two end closures respectively comprise two pins; a first inductance and a first bridge rectifier are connected in parallel between the two pins of the first end closure; a second inductance and a second bridge rectifier are connected in parallel between the two pins of the second end closure; output ends of the first bridge rectifier and the second bridge rectifier are connected in parallel with an LED lighting set; the LED lighting set comprises an LED light source group and a circuit for supplying a constant current or a constant voltage; a third inductance is connected in series between an input end of the LED lighting set and one pin of the second end closure; and a fourth inductance is connected in series between an output end of the LED lighting set and one pin of the first end closure. By adopting the LED fluorescent lamp and the fluorescent lamp connecting circuit, the LED fluorescent lamp can be directly used for replacing a fluorescent lamp under the condition that peripheral circuits of the traditional fluorescent lamp are not changed.

Description

technical field [0001] The invention relates to the LED field, in particular to an LED fluorescent lamp and a fluorescent lamp connection circuit. Background technique [0002] Among traditional lighting sources, straight tube fluorescent lamps and circular fluorescent lamps have been widely used in commercial lighting, office lighting and home lighting. Such as figure 1 , figure 2 and image 3 Shown are the circuit diagrams of three common fluorescent lamps at present. Such as figure 1 As shown, in the first common electronic ballast for fluorescent lamp circuit, after the commercial power is input from the input terminal of the electronic ballast, it is output to the four pins of the fluorescent lamp circuit through the four output terminals of the electronic ballast respectively. . Such as figure 2 As shown, the third common fluorescent lamp circuit also replaces the magnetic ballast in the first way with an electronic ballast, which is the same as figure 1 The ...

AI Technical Summary

Problems solved by technology

[0011] Since fluorescent lamps have been widely used in daily life, brackets, lamp panels and peripheral circuits specially designed for fluorescent lamps have already been deployed in large quantities. If the peripheral circuits of fluorescent lamps that have been formed are changed in order to use LED fluorescent lamps, it will increase a lot of cost. , and waste a lot of resources

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